488 DR. GUNTHER ON THE FISHES OF CENTRAL AMERICA. 
thirds in the total (without caudal), the height of the body thrice and a half. The 
origin of the dorsal fin is much nearer to the end of the snout than to the root of the 
caudal. The dorsal filament does not extend on to the caudal. Uniform silvery, with- 
out humeral spot. 
A single example, 24 inches long, was obtained by Messrs. Salvin and Dow at Libertad. 
274. CHATORSSUS PETENENSIS. 
Meletta petenensis, Giinth. Proc. Zool. Soe. 1866, p. 603. 
Chatoéssus petenensus, Giinth. Fish. vii. p. 408. 
D. 14-15. A. 20-25. L. lat. 40. 
The length of the head is two-sevenths of the total (without caudal); the height of 
the body is contained thrice or twice and three-fourths in the same. ‘The origin of the 
dorsal fin is nearer to the end of the snout than to the root of the caudal, and in advance 
of the ventrals. The dorsal filament does not extend on to the caudal. A small black 
round spot on the shoulder. 
Four examples, from 3 to 4 inches long, were obtained by Mr. Salvin in Lake Peten. 
276. ENGRAULIS POEYI. 
Kner & Steindachner, Abhandl. bayer. Akad. x. p. 23, Taf. 3. fig. 3. 
DIG SAN Aa Wao lat. 42. 
The length of the head is nearly equal to the height of the body, which is two-ninths 
of the total (without caudal); snout very short and rather obtuse; eye rather larger 
than one-fourth of the length of the head. The origin of the dorsal fin is nearer to the 
root of the caudal than to the end of the snout; origin of the anal fin opposite to the 
middle of the dorsal. Pectoral fin reaching a little beyond the root of the ventral. 
Upper and lower jaws with small teeth. 
Rio Bayano. 
277. ENGRAULIS MACROLEPIDOTA. 
Kner & Steindachner, /. c. p. 21, taf. 3. fig. 2. 
B. 12-13. D. 12. A. 29: L. lat. 35. - L. transv. 9. 
The length of the head is two-sevenths of the total (without caudal), the height of 
the body one-third. Snout pointed, very short. The diameter of the eye is one-fourth 
of the length of the head. ‘The origin of the dorsal fin is a little nearer to the root of 
the caudal than to the end of the snout ; origin of the anal fin immediately behind the 
end of the dorsal. Maxillary edentulous, extending to the angle of the preoperculum. 
Rio Bayano, 
